<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>列表过滤</title>
		<script type="text/javascript" src="../js/vue.js"></script>
</head>
<body>
    <!--准备好一个容器-->
    <div id ="root">
        <h2>人员列表</h2>
        <input type="text" placeholder="请输入名字" v-model="keyWord">
        <button @click="sortType = 2">年龄升序</button>
        <button @click="sortType = 1">年龄降序</button>
        <button @click="sortType = 0">原顺序</button>
          <ul>
             <li v-for="(p,index) of filPersons" :key="p.id">
                {{p.name}} - {{p.age}} - {{p.sex}}
                <input type="text">
             </li>
          </ul>
    </div>

    <script type="text/javascript">
        Vue.config.productionTip = false

        new Vue({
            el:'#root',
            data:{
                keyWord:'',
                sortType:0, //原顺序,1降序,2升序
                persons:[
                {id:'001',name:'马冬梅',age:30,sex:'女'},
                {id:'002',name:'周冬雨',age:31,sex:'女'},
                {id:'003',name:'周杰伦',age:18,sex:'男'},
                {id:'004',name:'温兆伦',age:19,sex:'男'}
                ]
            },
            computed:{
                filPersons(){
                    const arr =  this.persons.filter((p)=>{
                        return p.name.indexOf(this.keyWord)!== -1
                    })
                	//判断一下是否需要排序
						if(this.sortType){
                           // console.log(this.sortType)
                           arr.sort((p1,p2)=>{
                            return this.sortType === 1 ? p2.age-p1.age : p1.age-p2.age
							})
						}
						return arr
                }
            }
        })
    </script>
</body>
</html>